Robert Hegyes, best known for playing Juan Epstein—one of Gabe Kaplan's "star" pupils—in Welcome Back, Kotter, died this morning after an apparent heart attack, according to New Jersey's Star Ledger. He was 60.

The actor, who also played a detective on the later seasons of Cagney & Lacey, had been in poor health since suffering a previous heart attack a couple of years ago, according to his brother.

But he will always be remembered as the note-from-his-mutha-forging Juan Luis Pedro Philippo DeHuevos Epstein!